121012013331200 has 54 divisors (see below), whose sum is σ = 299523641137644. Its totient is φ = 48404805329920.

The previous prime is 121012013331191. The next prime is 121012013331221. The reversal of 121012013331200 is 2133310210121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9454057142 + ... + 9454069941.

Almost surely, 2^{121012013331200} is an apocalyptic number.

121012013331200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012013331200 is an abundant number, since it is smaller than the sum of its proper divisors (178511627806444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121012013331200 is an equidigital number, since it uses as much as digits as its factorization.

121012013331200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18908127109 (or 18908127090 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121012013331200 its reverse (2133310210121), we get a palindrome (123145323541321).

The spelling of 121012013331200 in words is "one hundred twenty-one trillion, twelve billion, thirteen million, three hundred thirty-one thousand, two hundred".